diff --git a/music21/_version.py b/music21/_version.py
index 911839a624..0fdd088122 100644
--- a/music21/_version.py
+++ b/music21/_version.py
@@ -63,7 +63,7 @@ def get_version_tuple(vv):
     return tuple(v)
 
 
-__version__ = '8.0.0rc3'
+__version__ = '8.1.0'
 
 __version_info__ = get_version_tuple(__version__)
 
diff --git a/music21/base.py b/music21/base.py
index 9ea9a11c08..5d766ede39 100644
--- a/music21/base.py
+++ b/music21/base.py
@@ -27,7 +27,7 @@
 <class 'music21.base.Music21Object'>
 
 >>> music21.VERSION_STR
-'8.0.0rc3'
+'8.1.0'
 
 Alternatively, after doing a complete import, these classes are available
 under the module "base":
diff --git a/music21/configure.py b/music21/configure.py
index c6a7321aa8..76256a88d7 100644
--- a/music21/configure.py
+++ b/music21/configure.py
@@ -22,8 +22,6 @@
 
 from importlib import reload  # Python 3.4
 
-import io
-
 # assume that we will manually add this dir to sys.path top get access to
 # all modules before installation
 from music21 import common
@@ -1576,12 +1574,6 @@ def testRe(self):
     def testConfigurationAssistant(self):
         unused_ca = ConfigurationAssistant(simulate=True)
 
-    def testAskInstall(self):
-        unused_d = AskInstall()
-        # d.askUser()
-        # d.getResult()
-        # d.performAction()
-
     def testGetUserData(self):
         unused_d = AskSendInstallationReport()
         # d.askUser()
diff --git a/music21/corpus/_metadataCache/core.p.gz b/music21/corpus/_metadataCache/core.p.gz
index bede32c922..48df9de4dc 100644
Binary files a/music21/corpus/_metadataCache/core.p.gz and b/music21/corpus/_metadataCache/core.p.gz differ
diff --git a/music21/test/coverageM21.py b/music21/test/coverageM21.py
index ec6b42e609..f19593ff97 100644
--- a/music21/test/coverageM21.py
+++ b/music21/test/coverageM21.py
@@ -13,7 +13,6 @@
 
 omit_modules = [
     'dist/dist.py',
-    'installer.py',
     'music21/test/*',
     'music21/configure.py',
     'music21/figuredBass/examples.py',